Update the RegExp.prototype.test function to support ES6 version (#3693)

The algorithm is based on ECMA-262 v6, 21.2.5.13

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu

tests/jerry/es2015/regexp-prototype-test.js

@@ -0,0 +1,24 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+var str = 'something interesting';
+var regexp = new RegExp('o*');
+Object.defineProperty(regexp, 'exec', { 'get':  function () {throw 42}});
+
+try {
+  regexp.test(str);
+  assert(false);
+} catch (e) {
+  assert(e === 42);  
+}